Capture only specific protocol network packets. If you want to filter traffic based on specific IP, use -f option. 
This is most used command by security researchers and network engineers. Capture only packets from the specific source or destination IP. tshark tool provide flexibility to user to display specific number of captured packets. Below command helps you to capture traffic for a particular duration. If user wants to capture network traffic from the live network for a specific period of time, just use -a option. Capture packets and copy traffic into. By using option -r with tshark, user can read saved pcap file easily. Read captured packets with tshark by providing input pcap file. By using -w options, user can easily copy all output of tshark tool into single file of format pcap. Capture network packets and copy in file traffic-capture.pcap. Capture network traffic with tshark by providing interface All tshark commands displayed on your machine. Root users can skip sudo and directly run the tshark command. If you are logged in as a regular, non-root user, you need sudo rights to use the TShark utility. If the Wireshark package is installed, check whether the TShark utility is installed and, if so, which version: # tshark -v However, it also provides a powerful command-line utility called TShark for people who prefer to work on the Linux command line.įirst, ensure the required packages are installed: # rpm -qa | grep -i wireshark Wireshark is a popular open source graphical user interface (GUI) tool for analyzing packets. To understand these protocols, you need a tool that can capture and help you analyze these packets. 
Right now, while you are reading this article, many packets are being exchanged by your computer and traveling across the internet. Most of the time when we connect to the internet, we don’t think about the network protocols which work behind that make it all possible.
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